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(cytidine triphosphate): see cytosinecytosine
, organic base of the pyrimidine family. It was isolated from the nucleic acid of calf thymus tissue in 1894. A suggested structure for cytosine, published in 1903, was confirmed in the same year when that base was synthesized in the laboratory.
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(1) (Computer Telephony Profile) See Bluetooth profiles.

(2) (Computer-To-Press) Printing directly from the computer. Since all common computer printers are essentially computer-to-press, this usage of the CTP acronym is more ambiguous than definition #3 below. It could refer to a large digital printer or to "on press" plate making (see DI press).

(3) (Computer-To-Plate) The production of printing plates directly from the computer. Also called "direct-to-plate," CTP is the digital replacement for the manual, time-consuming chemical processing that is performed when making plates from film. CTP is a stand-alone "off press" procedure, and the finished plates must be transported to and mounted on the offset printing press. The plates are mostly aluminum, but polyester, polymer and silicon are also used. For details about "on-press" plate making, see DI press.

Newspaper Plate Making
ECRM's Newsmatic machines are used in the newspaper industry for making large format plates. With capacities up to 340 plates, high-end models can produce up to 150 pages per hour at 2540 dpi. (Image courtesy of ECRM, www.ecrm.com)

Plate Making Methods
Although chemically developed CTP systems are an automated process, they still require chemical disposal and cleanup. Chemistry-free platemaking is the only environment-friendly CTP process. (Image courtesy of Presstek, Inc., www.presstek.com)

Chemistry Free
Presstek's Vector FL52 is a chemistry-free CTP system. A metal plate is inserted, thermally imaged, water-rinsed, ejected and press-ready in one step. (Image courtesy of Presstek, Inc., www.presstek.com)
References in periodicals archive ?
South Australian motorists will also benefit by an industry-specific CTP Regulator who will ensure fair and affordable CTP insurance and protection for motorists, he said.
Modern CTP loans can work well with tear-downs and construction/rehab projects.
The CTO said that CTP radio FM was providing latest information about road and traffic after every five minutes in accordance with development work in the city, adding that people should contact the CTP helpline before making a travel plan.
The company purchased its first Kodak CTP device, a V-speed KODAK TRENDSETTER 800 Platesetter with PRINERGY CONNECT Workflow, in 2009.
The CTO informed that driving training school of CTP is working under well-trained and highly qualified staff.
Upon issuance, this new patent is expected to further strengthen PROLOR's expanding intellectual property portfolio covering the CTP platform, as well as the new products we are developing using this versatile technology," said Shai Novik, president of PROLOR.
Joining Glass as Vice Chairmen on the AFP Board are Anita Patterson, CTP, Director, Treasury Services, Cox Enterprises Inc.
With the introduction of the new CTP+ certification, CompTIA and Certification Partners also announced today that the current CompTIA Convergence+ and Certification Partners' CTP 2007 certifications will both be retired on October 31, 2010.
We have several other CTP-related patent applications that are currently pending, and we believe that this growing patent portfolio will reinforce our existing patent estate for our CTP-enhanced compounds in development, as well as for our CTP platform technology generally.
May 14, 2012 /PRNewswire-USNewswire/ -- Measured Progress, an industry leader in the development of customized, K-12 student assessments for schools, districts and states, and ERB (Educational Records Bureau), premier provider of state-of-the-art assessment and learning solutions, today announced that Measured Progress has been awarded the contract for the fulfillment, scoring and call center operations of the CTP (Comprehensive Testing Program).
As the SMI specification continues to evolve and become integrated into an increasing number of storage products, SMI has focused on increasing the functionality of CTP for end users," said Paul von Behren, chair of the Storage Management Initiative.